The perimeter is the distance all the way around.
That's the sum of all the sides.
A triangle has 3 sides.
In an equilateral triangle, they're all the same length.
If one of them is 9.9 cm, then all of them add up to (3) · (9.9 cm) .
Answer:
The perimeter of the equilateral triangle is = [tex]29.7cm[/tex]
Step-by-step explanation:
[tex]P=3[/tex]
[tex]a=3[/tex] · [tex]9.9[/tex] ≈ [tex]29.7cm[/tex]
[tex]P=29.7cm[/tex]
